Protection of Window Med ia Video by Faked FourCC

As content serviced for IP set-top boxes is mostly streamed over IP network, the existing hacking tools for IP network can be used to capture the streamed content. Until recently, most of the content serviced on IP set-top boxes have been MPEG-2 TS. But it is being moved to WMV, MPEG-4 or H.264 gradually because of the compression efficiency. In this paper, we propose a DRM scheme other than WMRM for streamed WMV (windows media video) content. Our approach is to design a DRM scheme independent to the existing WMV streaming server. It also can control the processing time of DRM considering device performance.